Hi, I created a module hello.o and could do "insmod hello" without any problem. To use modprobe, I do: (1) #install -m 644 hello.o /lib/modules/`uname -r`/hello_world/ (2) #modprobe hello But I got an error msg "modprobe: Can't locate module hello". But I can see the module file under /lib/modules/2.4.20-8/hello_world/hello.o What I missed? Also, do I have to install a module under /lib/module/... first if wanting to use modprobe? Can I run modprobe to install a module in the current directory? Thanks, T. __________________________________ Do you Yahoo!? SBC Yahoo! - Internet access at a great low price. http://promo.yahoo.com/sbc/ -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/